Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc dieu che snippets" » "doc hieu che snippets", "hoc dieu che snippets", "soc dieu che snippets", "doc lieu che snippets", "doc diem chet snippets", "doc dieu chan snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("doc dieu che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc dieu che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc dieu che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc dieu che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.